Texas Instruments MSP430F643 Series, Руководство пользователя

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MSP430F6438, MSP430F6436, MSP430F6435, MSP430F6433
www.ti.com SLAS720D – AUGUST 2010 – REVISED DECEMBER 2015
5.12 Outputs – General-Purpose I/O (Reduced Drive Strength)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
I
(OHmax)
= –1 mA
(2)
V
CC
– 0.25 V
CC
1.8 V
I
(OHmax)
= –3 mA
(3)
V
CC
– 0.60 V
CC
V
OH
High-level output voltage V
I
(OHmax)
= –2 mA
(2)
V
CC
– 0.25 V
CC
3 V
I
(OHmax)
= –6 mA
(3)
V
CC
– 0.60 V
CC
I
(OLmax)
= 1 mA
(2)
V
SS
V
SS
+ 0.25
1.8 V
I
(OLmax)
= 3 mA
(3)
V
SS
V
SS
+ 0.60
V
OL
Low-level output voltage V
I
(OLmax)
= 2 mA
(2)
V
SS
V
SS
+ 0.25
3 V
I
(OLmax)
= 6 mA
(3)
V
SS
V
SS
+ 0.60
(1) Selecting reduced drive strength may reduce EMI.
(2) The maximum total current, I
(OHmax)
and I
(OLmax)
, for all outputs combined, should not exceed ±48 mA to hold the maximum voltage drop
specified.
(3) The maximum total current, I
(OHmax)
and I
(OLmax)
, for all outputs combined, should not exceed ±100 mA to hold the maximum voltage
drop specified.
5.13 Output Frequency – Ports P1, P2, and P3
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
V
CC
= 1.8 V,
8
PMMCOREVx = 0
Port output frequency P3.4/TA2CLK/SMCLK/S27,
f
Px.y
MHz
(with load) C
L
= 20 pF, R
L
= 1 k Ω
(1)
or 3.2 k Ω
(2) (3)
V
CC
= 3 V,
20
PMMCOREVx = 3
V
CC
= 1.8 V,
P1.0/TA0CLK/ACLK/S39,
8
PMMCOREVx = 0
P3.4/TA2CLK/SMCLK/S27,
f
Port_CLK
Clock output frequency MHz
P2.0/P2MAP0 (P2MAP0 = PM_MCLK ),
V
CC
= 3 V,
20
C
L
= 20 pF
(3)
PMMCOREVx = 3
(1) Full drive strength of port: A resistive divider with 2 × 0.5 k Ω between V
CC
and V
SS
is used as load. The output is connected to the
center tap of the divider.
(2) Reduced drive strength of port: A resistive divider with 2 × 1.6 k Ω between V
CC
and V
SS
is used as load. The output is connected to the
center tap of the divider.
(3) The output voltage reaches at least 10% and 90% V
CC
at the specified toggle frequency.
Copyright © 2010–2015, Texas Instruments Incorporated
Specifications 23
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